| 车用三效催化剂剖析 |
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| 引用本文： | 宋丽云,于杰,何洪,邱文革,张桂臻.车用三效催化剂剖析[J].工业催化,2016,24(4):76-80. |
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| 作者姓名： | 宋丽云 于杰 何洪 邱文革 张桂臻 |
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| 作者单位： | (1.区域大气复合污染防治北京市重点实验室, 绿色催化与分离北京市重点实验室,北京工业大学, 北京 100124； 2.北京电动车辆协同创新中心, 北京 100083) |
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| 基金项目： | 国家高技术研究发展计划（2015AA034603A）资助项目；北京市科技计划（Z141100003814017）资助项目 |
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| 摘 要： | 对两种国外公司车用三效催化剂进行全面剖析,采用XRF测定催化剂涂层中各组分含量,采用XRD、XPS、H_2-TPR和TEM对催化剂进行物化性能表征。结果表明,A公司的三效催化剂是将Pd和Rh贵金属分别负载到γ-Al_2O_3和Ce_(0.35)Zr_(0.65)O_2固溶体材料上,B公司的三效催化剂是将Pd和Rh贵金属负载到Ce_(0.35)Zr_(0.65)O_2和γ-Al_2O_3混合载体上。
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| 关 键 词： | 催化剂工程 三效催化剂 贵金属 载体材料 |
Analysis of vehicle three-way catalysts |
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| Affiliation: | (1.Key Laboratory of Beijing on Regional Air Pollution Control, Beijing Key Laboratory for Green Catalysis and Separation, Beijing University of Technology, Beijing 100124, China； 2.Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing 100083, China) |
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| Abstract: | Two kinds of commercial vehicle three-way catalysts(TWC) of foreign companies were analyzed.The coating compositions of the catalysts were determined by X-ray fluorescence.And their physicochemical properties were characterized by X-ray diffraction,transmission electron microscope,X-ray photoelectron spectroscope,H2 temperature programmed reduction methods.The results showed that Pd and Rh metal of the three-way catalysts manufactured by Company A were loaded onγ-Al2O3 andCe0.35Zr0.65O2carrier materials, respectively,while Pd and Rh components of the three-way catalyst produced by Company B were supported on the mixing carrier ofCe0.35Zr0.65O2 andγ-Al2O3. |
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| Keywords: | catalyst engineering three-way catalyst noble metal carrier materials |
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